CFRP复合材料电热特性及力学性能测试与分析

taptap下载安装安卓学报

CFRP复合材料电热特性及力学性能测试与分析

王志平，梁吉勇，张国尚，韩志勇，李娜

（taptap下载安装安卓天津市民用航空器适航与维修重点实验室，天津300300）

收稿日期:2012-11-12 修回日期:2012-11-30 出版日期:2013-02-23 发布日期:2014-05-23
作者简介:王志平（1963—），男，辽宁朝阳人，教授，博士，研究方向为航空材料加工与测试.
基金资助:
中央高校基本科研业务费专项（ZXH2012J002）

Test and analysis of electroghermal behaviour and mechanical properties on carbon fiber reinforced polymer composite materials

WANG Zhi-ping,LIANG Ji-yong,ZHANG Guo-shang,HAN Zhi-yong,LI Na

(Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance,CAUC,Tianjin 300300,China)

Received:2012-11-12 Revised:2012-11-30 Online:2013-02-23 Published:2014-05-23

摘要/Abstract

摘要：

采用自主研制的电热损伤实验装置，通过CFRP试样电流、温度场的测试，给出了CFRP试样的电热温度与电流强度之间呈线性递增的关系；通过力学性能的测试，初步揭示了CFRP材料随电加热温度的提高，其拉伸强度呈现“增加-稳定-降低”的趋势；弹性模量及泊松比均呈现“降低-稳定-降低”的趋势。还通过电镀工艺优化和预紧力的精确控制，成功解决了CFRP 试样与电极接触电阻过大和不稳定的难题。电镀铜处理试样的接触电阻可控制在0.39 Ω以下，且具有良好的重复性。

关键词: CFRP, 电热损伤, 接触电阻, 力学性能

Abstract:

The self-devised electroghermal damage test device was employed to test the current and thermal field of CFRP samples. Then, the relationship between electroghermal temperature and current intensity was gained,which is liner relationship and the temperature increases with the increase of current intensity. The tests of the mechanical properties of CFRP samples initially reveal that with the increase of electroghermal temperature,the tensile strength of CFRP samples increases first then turns stable and at last decreases, and, the Poisson's ratio of the CFRP samples decreases first then stable and lastly decrease. In addition, the unstable and excessive contact resistance between CFRP samples and electrode was successively solved through optimization of copper electroplating process and the precise control of pretightening force. The contact resistance can be controlled below 0.39Ωand it has a good repeatability.

Key words: CFRP, electroghermal damage, contact resistance, mechanical properties

中图分类号:

TB332

王志平，梁吉勇，张国尚，韩志勇，李娜. CFRP复合材料电热特性及力学性能测试与分析[J]. taptap下载安装安卓学报.

WANG Zhi-ping,LIANG Ji-yong,ZHANG Guo-shang,HAN Zhi-yong,LI Na. Test and analysis of electroghermal behaviour and mechanical properties on carbon fiber reinforced polymer composite materials[J]. .

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